EP 3380737 A1 20181003 - CONCRETE SCREW
Title (en)
CONCRETE SCREW
Title (de)
BETONSCHRAUBE
Title (fr)
VIS À BÉTON
Publication
Application
Priority
- DE 102015120470 A 20151126
- EP 2016001801 W 20161028
Abstract (en)
[origin: WO2017088947A1] The invention relates to a concrete screw (1) having a screw head (2) and a shaft (3) on which a thread section (7) is formed having a core (8) and a thread path (9). The thread section (7) comprises a cutting section (10) for cutting into a mineral anchoring base, and a support section (11), wherein the diameter (D10) of the cutting section (10) is a maximum of 5% larger than the diameter (Du) of the support section (11). According to the invention, in order that the concrete screw (1) is easy to screw in while having good supporting behaviour, at least one part of the thread path (9) has a width (Bio) in the cutting section (10) measured in the direction of the longitudinal axis (L), which width is at least 10% larger than a width (Bn) in the support section (11).
IPC 8 full level
F16B 25/00 (2006.01)
CPC (source: EP)
F16B 25/0026 (2013.01); F16B 25/0047 (2013.01); F16B 25/0052 (2013.01); F16B 25/0057 (2013.01)
Citation (search report)
See references of WO 2017088947A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017088947 A1 20170601; BR 112018004500 A2 20180925; CN 108350922 A 20180731; DE 102015120470 A1 20170601; DK 3380737 T3 20210510; EP 3380737 A1 20181003; EP 3380737 B1 20210505; ES 2881288 T3 20211129; PL 3380737 T3 20211108
DOCDB simple family (application)
EP 2016001801 W 20161028; BR 112018004500 A 20161028; CN 201680069343 A 20161028; DE 102015120470 A 20151126; DK 16788634 T 20161028; EP 16788634 A 20161028; ES 16788634 T 20161028; PL 16788634 T 20161028